53240091 has 8 divisors (see below), whose sum is σ = 71033664. Its totient is φ = 35469960.

The previous prime is 53240087. The next prime is 53240111. The reversal of 53240091 is 19004235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53240091 - 2² = 53240087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53240021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396 + ... + 10326.

It is an arithmetic number, because the mean of its divisors is an integer number (8879208).

Almost surely, 2^53240091 is an apocalyptic number.

53240091 is a deficient number, since it is larger than the sum of its proper divisors (17793573).

53240091 is a wasteful number, since it uses less digits than its factorization.

53240091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 53240091 is about 7296.5807745820. The cubic root of 53240091 is about 376.1949226046.

The spelling of 53240091 in words is "fifty-three million, two hundred forty thousand, ninety-one".